Conference Agenda

Session

A3-7: Instrument transformers

Time:

Wednesday, 01/Oct/2025:

1:30pm - 3:30pm

Location: Room 519A

Session Topics:

PS2: APPLICATION OF TECHNOLOGIES, INFORMATION TECHNOLOGY (IT) AND ARTIFICIAL INTELLIGENCE (AI), A3 Transmission and distribution equipment

Presentations

1:30pm - 1:45pm

Low-Power Instrument Transformers for Control, Protection and Metering Applications

Valeri Oganezov¹, Lukas Cesky², Vaclav Prokop²

¹ABB Inc,, Canada; ²ABB s.r.o., Czech Republic

1:45pm - 2:00pm

Optical Current Transformers: Bridging Measurement Accuracy and Predictive Maintenance

Carlos Dutra¹, Luan Tominaga¹, Jurandir Oliveira¹, Vitor Woyakewicz², Sergio Zimath², Tiago Matsuo², Luciano Freitas³, Rubens Nascimento³

¹PowerOpticks, Brazil; ²AQTech, Brazil; ³ENGIE, Brazil

2:00pm - 2:15pm

New test and commissioning tools and concepts for low power instrument transformer

Peter Menke², Franz Gatzen³, Patrick Ganser², Federico Canas³, Max Burow², Jörg Blumschein³, Antoni Furlani Rosa¹, Lucas Varela¹, Thomas Neumeier³, Andre Rios¹

¹SecuControl Inc, United States of America; ²Siemens Energy Germany; ³Siemens AG Germany

2:15pm - 2:30pm

Test voltage investigations on wide-bandwidth accuracy behaviour of medium voltage LPVTs using sweep frequency response analysis

Thomas Bischof¹, Lukas Cesky², Erik Sperling³, Danish Baig⁴, Bretislav Sevcik²

¹OMICRON electronics GmbH, Austria; ²ABB s.r.o, Czech Republic; ³OMICRON, Switzerland; ⁴ABB, Canada

2:30pm - 2:45pm

Recommendations for the Low – Power Passive Instrument Transformers testing

Lukas Cesky¹, Ryan Elo², Mirza Danish Baig³, Karol Majer², Martin Celko², Vaclav Prokop², Victor Villanueva⁴

¹ABB, Brno, Czech Republic; ²OMICRON electronics Corp., USA; ³ABB Inc., Canada; ⁴ABB Inc., USA

2:45pm - 3:00pm

Development and Testing of a 110 kV 10000 pF Dry Type Capacitive Voltage Transformer (CVT)

Robert Leonard Middleton, Eric Euvrard, Haizhen Wang

RHM International

3:00pm - 3:15pm

Frequency-Dependent Validation of an Electromagnetic Control-Oriented Current Transformer Model

Nicolai Schwartze^1,2, Dennis Albert¹, Sonja Moschik¹, Markus Reichhartinger²

¹OMICRON electronics GmbH, Austria; ²Graz University of Technology, Austria

3:15pm - 3:30pm

Development of an optimised Fibre Optics Sensor for Laboratory and Substation non-invasive Calibration of Current Transformers

Gabriella CROTTI¹, Palma Sara LETIZIA¹, Alf-Peter ELG², Guglielmo FRIGO³, Jari HÄLLSTRÖM⁴, Paolo MAZZA⁵, Burak AYHAN⁶, Hüseyin ÇAYCI⁶, Mikael LINDGREN²

¹INRIM Istituto Nazionale di Ricerca Metrologica; ²RISE Research Institutes of Sweden AB; ³METAS Federal Institute of Metrology; ⁴VTT Technical Research Centre of Finland Ltd; ⁵RSE Ricerca Sistema Energetico; ⁶TUBITAK The Scientific and Technological Research Council of Türkiye